GCD of 646, 644, 442, 788 Calculator

Given Input numbers are 646, 644, 442, 788

In the factoring method, we have to find the divisors of all numbers

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 644 :

The positive integer divisors of 644 that completely divides 644 are.

1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644

Divisors of 442 :

The positive integer divisors of 442 that completely divides 442 are.

1, 2, 13, 17, 26, 34, 221, 442

Divisors of 788 :

The positive integer divisors of 788 that completely divides 788 are.

1, 2, 4, 197, 394, 788

GCD of numbers is the greatest common divisor

So, the GCD (646, 644, 442, 788) = 2.

Given numbers are 646, 644, 442, 788

The list of prime factors of all numbers are

Prime factors of 646 are 2 x 17 x 19

Prime factors of 644 are 2 x 2 x 7 x 23

Prime factors of 442 are 2 x 13 x 17

Prime factors of 788 are 2 x 2 x 197

The highest common occurrence is 2¹

Therefore, GCD of 646, 644, 442, 788 is 2.

Given numbers are 646, 644, 442, 788

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(646, 644) = 208012

GCD(646, 644) = ( 646 x 644 ) / 208012

= 646 / 644

= 646

Step2:

LCM(2, 442) = 442

GCD(2, 442) = ( 2 x 442 ) / 442

= 2 / 442

= 2

Step3:

LCM(2, 788) = 788

GCD(2, 788) = ( 2 x 788 ) / 788

= 2 / 788

= 2

So, Greatest Common Divisor of 646, 644, 442, 788 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 538, 190, 848, 410
• GCD of 745, 473, 485, 613
• GCD of 584, 937, 816, 248
• GCD of 665, 162, 897, 560
• GCD of 175, 211, 106, 214

Given numbers are 646, 644, 442, 788
The greatest common divisor of numbers 646, 644, 442, 788 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 646, 644, 442, 788 is 2.

1. What is the GCD of 646, 644, 442, 788?

GCD of given numbers 646, 644, 442, 788 is 2

2. How to calculate the greatest common divisor of 646, 644, 442, 788?

We can find the highest common divisor of 646, 644, 442, 788 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 646, 644, 442, 788 i.e 2.

3. How can I use the GCD of 646, 644, 442, 788Calculator?

Out the numbers 646, 644, 442, 788 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.